[ABAP] OpenSQL: SELECT über drei Tabellen (INNER JOIN)

SELECT DISTINCT a~col1, b~col1, c~col1
  INTO CORRESPONDING FIELDS OF TABLE @itab
  FROM table1 AS a
  INNER JOIN table2 AS b ON a~col1 = b~col2
  INNER JOIN table3 AS c ON a~col1 = c~col3
  WHERE a~col4 > '1' AND
        b~col2 = 'X' AND
        c~col4 = ' '.